Страница 1 мировой engineering стандарты общая спецификация

8.8.7.3 Verification Procedures for Device Control Security Levels ($03, $04). 
The procedures below shall
be followed if the ECU supports the Device Control security access levels ($03 and $04). The steps for
Procedure 1 below shall be performed within 10 s of the ECU being powered up (executing operational
software). For procedures 2 through 6 below, the verification procedures shall be performed after the ECU has
been powered up (executing operational software) for at least 10 s.
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GM WORLDWIDE ENGINEERING STANDARDS
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Procedure 1:
1. Send a valid security access request message $03 within 10 s of power-up to an ECU when the
vulnerability_flag !=$FF (if supported) and the MEC = $00. Verify $7F $27 $37 response.
2. Repeat step 1 of this procedure periodically (approximately every 500 ms) and verify that the $7F $27 $37
response is sent each time until the ECU has been powered for 10 s.
3. Send a valid security access request message $03 within 10 s of power-up to an ECU when the MEC >
$00 and vulnerability flag not equal to $FF (if supported). Verify the proper positive response message $67
$03 $00 $00.

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4. Send a valid security access request message $03 within 10 s of power-up to an ECU when the MEC
equals $00 and vulnerability flag is set to $FF (if supported). Verify the proper positive response message
$67 $03 $00 $00.
Procedure 2: 
This procedure is to be performed twice, once while the ECU has the service device control
restrictions active and once while the ECU has the assembly plant device control restrictions active.
1. Send a security access request message $03 with an incorrect number of data bytes and verify $7F $27
$12 response.
2. Send a security access request message $04 without sending a security access request message $03 and
verify $7F $27 $22.
3. Send a valid security access request message $03 and verify the security access positive response
message $03. Then send a request message $04 with an incorrect number of data bytes and verify the
$7F $27 $12 response.